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<div><font face="Tahoma"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="Trebuchet MS"><span class="264512511-22032011">Dear Andrew and Ariel</span></font></span></span></font></div>
<div><font size="+0"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="trebuchet ms"><span class="264512511-22032011">Tom Laue and myself have recently been having a private discussion about this after some
epon based centerpieces were (very!) worse for wear after exposure to dimethylacetamide.</span></font></span></span></font></div>
<div><font size="+0"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="trebuchet ms"><span class="264512511-22032011">As Ariel says, Kel-F double sectors have been reliable at modest temperatures but Beckman
don't make them any more. Probably aluminium (not Al-epon) or titanium would do instead, but best to test them with the solvent in a beaker overnight.</span></font></span></span></font></div>
<div><font size="+0"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="trebuchet ms"><span class="264512511-22032011">If anyone not working on organics have any old ds KelF's (even old 30mm's) they'd like
to get rid of or exchange for epons or even sell please let us know!</span></font></span></span></font></div>
<div><font size="+0"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="trebuchet ms"><span class="264512511-22032011">All best</span></font></span></span></font></div>
<div><font size="+0"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="trebuchet ms"><span class="264512511-22032011">Steve</span></font></span></span></font></div>
<div><font size="+0"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><font face="trebuchet ms"><span class="264512511-22032011"></span></font></span></span></font> </div>
<div><font face="Tahoma" size="2"><em><i><font size="1"><span style="FONT-SIZE: 7.5pt; FONT-FAMILY: 'Trebuchet MS'"><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS" size="1"><span class="264512511-22032011">_____________________________________________________________</span></font></em></span></div>
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<div align="left"><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS" size="1"><span class="264512511-22032011">Steve Harding,
</span></font></em></span><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS"><font size="1">National Centre for Macromolecular Hydrodynamics,
</font></font></em></span><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS"><font size="1">
<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />
<st1:PlaceType w:st="on">University</st1:PlaceType> of <st1:PlaceName w:st="on">Nottingham,
</st1:PlaceName></font></font></em></span><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS" size="1"><st1:PlaceName w:st="on">Sutton Bonington
</st1:PlaceName></font></em></span><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS"><font size="1"><st1:PlaceName w:st="on">LE12 5RD, UK.
<font face="trebuchet ms">Tel: </font>+44(0) 115 951 6148 (fax 6142); Mob: +44(0) 78110 90635;
</st1:PlaceName></font></font></em></span><span style="FONT-SIZE: 10pt"><a href="http://www.nottingham.ac.uk/Biosciences/People/steve.harding"><em><font face="Trebuchet MS" color="#000080" size="1">http://www.nottingham.ac.uk/Biosciences/People/steve.harding</font></em></a></span><span style="FONT-SIZE: 10pt"><em><font face="Trebuchet MS" size="1"><font face="trebuchet ms">;
<a href="http://www.nottingham.ac.uk/ncmh"><font color="#000080">http://www.nottingham.ac.uk/</font></font><font color="#000080">ncmh</font></a></font></em> <font size="1">(next year is 25th anniversary!)</font></span></div>
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<font face="Tahoma" color="#000000" size="2"><b>From:</b> rasmb-bounces@rasmb.bbri.org [rasmb-bounces@rasmb.bbri.org] On Behalf Of Ariel Lustig [ariel.lustig@bluewin.ch]<br>
<b>Sent:</b> 20 September 2011 15:20<br>
<b>To:</b> rasmb<br>
<b>Subject:</b> [RASMB] acetonitrile<br>
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<div><font face="Arial" size="2">Dear Andrew and & colleagues,</font></div>
<div><font face="Arial" size="2">ten years ago, when I was still active in my AUC lab (now retired), when I had</font></div>
<div><font face="Arial" size="2">a solvent where I do not know if it attacks a certain centerpiece, I took a piece of an old not more usable centerpiece (or other AUC labs gave me such a piece),</font></div>
<div><font face="Arial" size="2">and put it in a vessel with the liquid fo one until 10 days and prooft if there are no sign of swelling or other attacks...if not I permit myself to use it.</font></div>
<div><font face="Arial" size="2">In any case I had also all kinds of Kel-F centerpieces that are usually resistant except
<div><font face="Arial" size="2">Flour components...yours ariel</font></div>
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<div><font face="Arial" size="2"><a href="mailto:ariel.lustig@bluewin.ch">ariel.lustig@bluewin.ch</a></font></div>
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